Yukon GM 10.5" / 11.5" Full Float Rear Wheel Bearing & Seal Kit
AK GM11.5
The Yukon GM 10.5" / 11.5" Full Float Rear Wheel Bearing & Seal Kit provides the inner and outer wheel bearings, matching races, and wheel seal needed to service one rear wheel end on compatible Chevrolet Silverado and GMC Sierra heavy-duty trucks. Whether you're replacing worn hub bearings, repairing a leaking wheel seal, or rebuilding a full-float rear axle, this kit gives you the major wheel-end service components in one package. It's a practical replacement for tow rigs, work trucks, fleet vehicles, and off-road builds that put serious loads on their rear axle assemblies.
GM full-float rear axles use separate inner and outer wheel bearings to support the hub and vehicle weight while the axle shaft transfers driving torque. Worn bearings can create excessive hub movement, noise, heat, and damage to the spindle or hub if left unchecked. This Yukon kit includes both bearings, their matching races, and a wheel seal so the wheel end can be serviced together. The important part is matching the bearing dimensions and installed axle configuration before installation, especially when comparing different generations of GM 10.5" and 11.5" rear axles.
Includes:
- (1) Inner Rear Wheel Bearing
- (1) Outer Rear Wheel Bearing
- Matching Inner & Outer Bearing Races
- (1) Rear Wheel Seal
Important: This kit services one rear wheel end. Order quantity (2) to service both sides of a compatible rear axle. Verify the installed axle and bearing dimensions before ordering. This kit uses different bearing dimensions than Yukon AK GM11.5-B.
Specifications
| Manufacturer | Yukon Gear & Axle |
|---|---|
| Part Number | AK GM11.5 |
| Product Type | Rear Wheel Bearing & Seal Kit |
| Axle Platform | GM 10.5" / GM 11.5" |
| Axle Design | Full Float |
| Axle Position | Rear / One Wheel End |
| Inner Wheel Bearing | Included |
| Inner Bearing ID | 2.250" |
| Inner Bearing Race OD | 3.8125" |
| Outer Wheel Bearing | Included |
| Outer Bearing ID | 2.000" |
| Outer Bearing Race OD | 3.250" |
| Bearing Races | Inner & Outer Included |
| Wheel Seal | Included |
| Installation Type | Rear Hub Bearing & Wheel Seal Replacement |
| Primary Application | GM Full-Float Rear Axle Wheel-End Service, Towing & Heavy-Duty Truck Maintenance |
| Quantity | One Wheel Bearing & Seal Kit / One Side |
Fitment
Designed for compatible Chevrolet Silverado and GMC Sierra heavy-duty trucks equipped with GM 10.5" or 11.5" full-float rear axles. Final fitment depends on the installed axle, hub, spindle, and wheel bearing dimensions.
| Make | Model | Year Range | Axle Application |
|---|---|---|---|
| Chevrolet | Silverado 2500 | 2001–2004 | GM 11.5" Full Float Rear |
| Chevrolet | Silverado 2500 HD | 2001–2011 | GM 11.5" Full Float Rear |
| Chevrolet | Silverado 3500 | 2001–2006 | GM 11.5" Full Float Rear |
| Chevrolet | Silverado 3500 Classic | 2007 | GM 11.5" Full Float Rear |
| Chevrolet | Silverado 3500 HD | 2007–2011 | GM 11.5" Full Float Rear |
| GMC | Sierra 2500 | 2001–2004 | GM 11.5" Full Float Rear |
| GMC | Sierra 2500 HD | 2001–2011 | GM 11.5" Full Float Rear |
| GMC | Sierra 2500 HD Classic | 2007 | GM 11.5" Full Float Rear |
| GMC | Sierra 3500 | 2001–2006 | GM 11.5" Full Float Rear |
| GMC | Sierra 3500 Classic | 2007 | GM 11.5" Full Float Rear |
| GMC | Sierra 3500 HD | 2007–2011 | GM 11.5" Full Float Rear |
Fitment Notes:
- Designed for compatible GM 10.5" and 11.5" full-float rear axle applications
- Includes inner and outer wheel bearings, matching races, and wheel seal
- Inner bearing: 2.250" ID / 3.8125" race OD
- Outer bearing: 2.000" ID / 3.250" race OD
- Services one rear wheel end
- Order quantity (2) to service both sides
- Not intended for semi-float rear axle applications
- Not a differential carrier or pinion bearing kit
- Verify axle identification, bearing dimensions, hub, and spindle compatibility before ordering
- Inspect the spindle and hub for wear or overheating before installation
Builder Note: Yukon AK GM11.5 and AK GM11.5-B use different inner and outer bearing dimensions. Do not select the kit based on the truck model or GM 11.5" axle name alone. Confirm the wheel-end configuration and bearing measurements before ordering.
FAQ
What comes in the Yukon AK GM11.5 bearing kit?
This kit includes one inner wheel bearing, one outer wheel bearing, matching bearing races, and one wheel seal. It provides the major service components needed to rebuild one rear wheel end on a compatible GM full-float axle.
What is the difference between Yukon AK GM11.5 and AK GM11.5-B?
The two kits use different bearing dimensions. AK GM11.5 has a 2.250" inner bearing ID with a 3.8125" race OD and a 2.000" outer bearing ID with a 3.250" race OD. AK GM11.5-B uses larger 2.375" and 2.165" bearing IDs with corresponding larger races. Verify the installed hub and spindle dimensions before selecting either kit.
Will this kit fit my Chevrolet Silverado or GMC Sierra HD?
This kit is listed for compatible Silverado and Sierra heavy-duty applications equipped with the specified GM full-float rear axle. Verify the installed axle model and wheel bearing dimensions before ordering because hub and spindle configurations can vary by model and production year.
What is the difference between a full-float and semi-float rear axle?
A full-float axle uses a separate hub and wheel bearing assembly to support vehicle weight, while the axle shaft primarily transfers driving torque. A semi-float axle shaft carries both driving torque and vehicle weight. This kit is designed for compatible full-float wheel-end assemblies.
Does this kit include bearings and seals for both rear wheels?
No. This kit services one rear wheel end. Order quantity (2) to replace the bearings and seals on both sides of a compatible rear axle.
What are common signs of worn rear wheel bearings?
Common symptoms include humming or grinding noises, excessive hub movement, vibration, abnormal wheel-end heat, and leaking gear oil. Inspect the bearings, seals, hub, and spindle to identify the cause before replacing components.
Should I replace the bearing races when replacing wheel bearings?
Yes. Bearings and races are matched working surfaces and should generally be replaced together during wheel-end service. This kit includes the corresponding races for both the inner and outer bearings.
Does this kit include differential carrier or pinion bearings?
No. This is a rear wheel-end bearing kit. It does not include carrier bearings, pinion bearings, or differential setup components used inside the axle center section.
What should I inspect during a full-float wheel bearing replacement?
Inspect the spindle journals, hub bearing bores, wheel seal contact surfaces, and retaining hardware. Look for scoring, heat discoloration, corrosion, or abnormal wear. Proper bearing adjustment and lubrication are essential for long-term wheel-end reliability.